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3 years ago

Can someone please help me with these questions?

Mathematics

1 answer:

Dmitrij [34]3 years ago

8 0

Expanded form is writing out everything and no simplifying.

A. c times c

B. t times t times t times t

C. 2 times x times x times x

D. 4 times 4 times h times h

E. 2 times 2 times 2 times l times l times l

F. a times a times a + 7 times b times b

Hope this helps :)

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The garden view hotel is seventeen less than twice the height of the plaza hotel. If their combined height is 361 feet, how tall

lisov135 [29]

The garden view hotel is 235 feet tall

Step-by-step explanation:

The given is:

The garden view hotel is seventeen less than twice the height of the plaza hotel
Their combined height is 361 feet

We need to find the height of the garden view hotel

Assume that the height of garden view hotel is x feet and the height of the plaza hotel is y feet

∵ The height of the garden view hotel = x feet

∵ The height of the plaza hotel = y feet

∵ The height of the garden view hotel is 17 less than twice the

height of the plaza hotel

- That means x is less than 2 × y by 17, equate x by the difference

of 2 × y and 17

∴ x = 2y - 17 ⇒ (1)

∵ Their combined height = 361 feet

∴ x + y = 361

- Find y in terms of x by subtraction x from both sides

∴ y = 361 - x ⇒ (2)

Substitute y in equation (1) by equation (2)

∵ x = 2(361 - x) - 17

- Simplify the right hand side

∴ x = 722 - 2x - 17

- Add like terms

∴ x = 705 - 2x

- Add 2x to both sides

∴ 3x = 705

- Divide both sides by 3

∴ x = 235

The garden view hotel is 235 feet tall

Learn more:

You can learn more about the word problems in brainly.com/question/13174281

#LearnwithBrainly

3 0

3 years ago

Somenone help im faling horribly there is two qestion I need help on any one know both

Crazy boy [7]

C = 2πr
C = 2(3.14)(2.5)
C = 15.7 = 16 cm is your answer.

282.6 m = πD
282.6 m = (3.14)D
282.6 m/3.14 = 3.14/3.14 x D
90 m = D
90 meters is the diameter.

hope this helps you!!!

7 0

3 years ago

PLS PLS HELP ME I HAVE 5 MINS <br> I WILL GIVE YOU BRAINLY!!!

WINSTONCH [101]

4/6 = 12/18

8/10 = 16/20

2/5 = 4/10

1/4 = 4/16

Can I get brainiest please.

8 0

3 years ago

A buyer pays a deposit to the seller in advance before completing the transaction. which term best defines this?

vovangra [49]

Answer:

B. Earnest money

Step-by-step explanation:

We have the statement,

'A buyer pays a deposit to the seller in advance before completing the transaction'.

'Earnest money' is 'the amount deposited by the buyer to the seller in advance, as a representation of a good faith to buy the required thing'.

Thus, we see that the statement represents 'Earnest money'.

So, option B is correct.

4 0

3 years ago

Read 2 more answers

At a point on the ground 80 ft from the base of a tree, the distance to the top of the tree is 11 ft more than 2 times the heigh

Sergio039 [100]

Let h be the height of the tree and d the distance to the top of the tree from the point on the ground. Draw a diagram to visualize the situation:

Since the distance to the top of the tree is 11 ft more than two times the height, then:

$d=2h+11$

Use the Pythagorean Theorem to relate the length of the sides of the right triangle:

$\begin{gathered} h^2+80^2=d^2 \\ \Rightarrow h^2+6400=(2h+11)^2 \\ \operatorname{\Rightarrow}h^2+6400=(2h)^2+2(11)(2h)+11^2 \\ \operatorname{\Rightarrow}h^2+6400=4h^2+44h+121 \end{gathered}$

Notice that we have obtained a quadratic equation in terms of h. Write it in standard form and use the quadratic formula to solve for h:

$\begin{gathered} \Rightarrow0=4h^2+44h+121-h^2-6400 \\ \Rightarrow0=4h^2-h^2+44h+121-6400 \\ \Rightarrow0=3h^2+44h-6279 \\ \Rightarrow3h^2+44h-6279=0 \\ \\ \Rightarrow h=\frac{-44\pm\sqrt{(44)^2-4(3)(-6279)}}{2(3)} \\ \\ \therefore h_1=39 \\ h_2=-53.666.. \end{gathered}$

Since the height of the tree must be positive, the only solution is h=39ft. To the nearest foot, the height of the tree is 39.

Therefore, the height of the tree is 39 ft.

4 0

1 year ago